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Chemical synthesis and complexing behaviour of branched cyclodextrins composed of an amylose and a β‐cyclodextrin residue
Author(s) -
Kubik Stefan,
Wulff Günter
Publication year - 1994
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1994.021950522
Subject(s) - cyclodextrin , chemistry , amylose , residue (chemistry) , circular dichroism , polymer chemistry , alkyl , degree of polymerization , inclusion compound , polymerization , helix (gastropod) , chemical modification , molecule , side chain , stereochemistry , organic chemistry , polymer , ecology , starch , snail , biology
The synthesis of a new class of branched cyclodextrins is presented. In these compounds an amylose residue with a degree of polymerization (DP) of 30 is attached to the C6 position of a β‐cyclodextrin molecule via an alkyl spacer. Hence, these hosts are composed of a combination of two different components linked covalently, both having individual properties. The complexing behaviour was investigated by circular dichroism (CD) spectroscopy. The CD spectra indicate that the inclusion geometry of some guest compounds into the β‐cyclodextrin cavity is influenced by the amylose side chain. However, an additional complexation of these guests inside the amylose helix was not observed.